<template>
    <div class="login_container">
        <!-- 标题logo -->
    <div class="login_logo">
        <img src="../assets/jm.jpeg" alt="">
    </div>
<!-- 登陆格 -->
    <div class="login_box">
        <div class="avatar_box">
            <img src="../assets/JiMeiLogo.jpeg" alt="">
        </div>
<!-- 登陆表单 -->
        <el-form ref="loginFormRef" :model="loginForm" :rules="loginFromRules" label-width="0px" class="login_form">
            <!-- 用户名 -->
        <el-form-item prop="username">
         <el-input v-model="loginForm.username" prefix-icon="el-icon-user"></el-input>
            </el-form-item> 
            <!-- 密码 -->
         <el-form-item prop="password">
         <el-input  v-model="loginForm.password" prefix-icon="el-icon-key" type="password"></el-input>
            </el-form-item> 
            <!-- 按钮区域 -->
        <el-form-item class="btns">
            <el-button type="primary" @click="login">登陆</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
            </el-form-item> 
        </el-form>
    </div>
    </div>
</template>

<script>
export default{
    data()
    {
        return{
            // 登录表单数据绑定对象
            loginForm:{
                username:'admin',
                password:'123456'
                
            },
            // 表单验证规则对象
            loginFromRules:{
                // 验证用户名是否合法
                username:[
                    { required: true, message: '请输入用户名称', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
            ],
                // 验证密码是否合法
                password:[{ required: true, message: '请输入登录密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }]
            }
        };
    },
    methods:{
        // 重置登录表单
        resetLoginForm(){
            this.$refs.loginFormRef.resetFields();
        },

        login(){
            this.$refs.loginFormRef.validate(async valid=>{
                if(!valid) return;
                const {data:res}=await this.$http.post("login",this.loginForm);
                if(res.meta.status!==200) return this.$message.error('登录失败！账号不存在或密码错误');
                this.$message.success('登录成功');
                //将token保存到sessionStorage中
                window.sessionStorage.setItem('token',res.data.token);
                // 通过编程式导航跳转到后台主页
                this.$router.push('/home');
            });
        }
    }
};
</script>

<style lang="less" scoped>
.login_container{
    background-color:deepskyblue;
    height: 100% ;
} 

.login_box{
    width: 450px;
    height: 300px;
    background-color:white;
    border-radius:3px;
    position:absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    .avatar_box{
        height:130px;
        width:130px;
        border:1px solid #eee;
        border-radius:50%;
        padding: 10px;
        box-shadow: 0 0 10px;
        position: absolute;
        left:50%;
        transform: translate(-50%,-50%);
        background-color: #fff;
        img{
            width:100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }
}

.login_logo{
    width:600px;
    height:200px;
    position: absolute;
    top: 0%;
    left: 20%;
    transform:translate(30%,-10%);
}

.login_logo img{
width: 100%; /* 保持图片比例并适应容器尺寸 */
  height: 100%;
background-color:black;
}
.login_form
{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
.btns{
    display: flex;
    justify-content: flex-end;
}
</style>